DAY 258:

Today’s Challenge

Our arithmetic and strategy board game, Mathematically Possible, uses three normal dice involving numbers from 1 to 6, but larger numbers can be introduced to the game simply by using special dice, just as in this challenge.

Use the numbers 2, 4 and 10 once each with + – × ÷ available, can you list the 14 target numbers from 1-30 that are mathematically possible to achieve?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 3rd & 7th rows contain the following fourteen numbers:

4    11    13    24    25    27    30    36    42    45    66    70    77    80

What is the difference between the two prime numbers listed?

Make 258 Challenge

Can you arrive at 258 by inserting 1, 2, 4, 5 and 10 into the gaps below?

×(◯²+◯)–(◯÷◯) = 258

Answers can be found here.

Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.

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